In association with an X17.0 flare on 2005 September 7, intense emissions of hard X-rays and -rays were registered by satellites, and relativistic neutrons were observed by ground-based detectors. The neutron signal continued for more than 20 minutes with high statistical significance. The long decay of the signals suggests that ions were continuously accelerated or trapped in the emission site. We also find that -rays were emitted over a corresponding extended period. Only when we incorporate the highenergy -ray emission time history can we explain the long-lasting neutron emission. However we cannot explain neutron emissions by using Hua's model .
|Number of pages||4|
|State||Published - 2007|
|Event||30th International Cosmic Ray Conference, ICRC 2007 - Merida, Yucatan, Mexico|
Duration: 3 Jul 2007 → 11 Jul 2007
|Conference||30th International Cosmic Ray Conference, ICRC 2007|
|Period||3/07/07 → 11/07/07|